high level valve

Abstract

The utility model provides a kind of height valve, including valve body, valve assembly, drive assembly and interface assembly, the valve assembly includes the air inlet valve and exhaust valve being arranged in the valve cavity of the valve body, the drive assembly is driven by moving to opposite two directions to open and close the air inlet valve and the exhaust valve;The interface assembly is detachably connected with the valve body, including interface plate, the interface plate has the first gas path and the second gas path of mutual separation design, to be respectively used for connecting air spring and gas source;The height valve provided by the utility model, the valve body is detachably installed in vehicle by interface assembly, the speed of dismounting valve body when improving maintenance can be improved, maintenance steps are simplified, and gas connection pipeline is arranged in interface assembly, so that the air tightness is avoided to be destroyed due to the influence or damage of interface pipeline caused by dismounting height valve valve body.

Description

Technical Field

[0001] This utility model relates to the field of valve design technology, and in particular to a height valve. Background Technology

[0002] In rail transit, the air inlet and outlet of the height valve are integrated with the valve body. When maintenance is required, it needs to be removed from the air pipeline. This process causes irreversible damage to the air management system, and it is impossible to guarantee that the working performance will be consistent with the original when reinstalled. Utility Model Content

[0003] The purpose of this utility model is to provide a height valve to solve the problem of quick disassembly during the disassembly and maintenance of height valves in rail transit, and to avoid affecting or damaging the interface pipeline due to the disassembly and assembly of the height valve.

[0004] To solve the above-mentioned technical problems, this utility model provides a height valve, including: a valve body, a valve assembly, a drive assembly, and an interface assembly;

[0005] The valve body has a valve cavity;

[0006] The valve assembly includes an exhaust valve and an intake valve, wherein the exhaust valve and the intake valve are disposed within the valve cavity;

[0007] The drive assembly moves in opposite directions to drive the opening and closing of the intake valve and the exhaust valve, respectively.

[0008] The interface assembly includes an interface board with a first air passage and a second air passage designed to be separated from each other. The first air passage and the second air passage are respectively used to communicate with the air spring and the air source. The valve body is detachably connected to the interface board. After the valve body is installed on the interface board, when the drive assembly drives the exhaust valve to open, the gas in the air spring is discharged into the valve cavity through the first air passage and discharged out of the valve cavity through the exhaust valve. When the drive assembly drives the intake valve to open, the gas in the air source passes through the second air passage, the intake valve and the first air passage in sequence and enters the air spring.

[0009] Optionally, the interface board has two first air passages, and the two first air passages are connected to the air spring in opposite directions.

[0010] Optionally, both of the first air passages have air spring ports for connection with the air springs, and the openings of the two air spring ports face opposite directions.

[0011] Optionally, the openings of the two air spring ports are oriented in a first direction, and the opening of the port of the second air passage for connecting to the air source is oriented in a second direction, the second direction being orthogonal to the first direction.

[0012] Optionally, the intake valve includes an intake valve core and an intake valve seat, and the exhaust valve includes an exhaust valve core and an exhaust valve seat. The drive assembly controls the opening and closing of the intake valve by driving the intake valve core to move relative to the intake valve seat, and controls the opening and closing of the exhaust valve by driving the exhaust valve core to move relative to the exhaust valve seat.

[0013] The drive assembly includes a horizontal lever, a slider, a sleeve, and a spindle. The sleeve is fitted onto the spindle and fixedly connected to the slider. The spindle is movably disposed relative to the sleeve. The exhaust valve core and the intake valve core are fitted onto the spindle. When the slider moves along a third direction under the drive of the horizontal lever, the sleeve acts on the exhaust valve core, causing the exhaust valve core to move away from the exhaust valve seat along the third direction. Under the drive of the horizontal lever, the slider moves along a fourth direction, driving the spindle to move, thereby driving the intake valve core to move away from the intake valve seat along the fourth direction. The fourth direction is opposite to the third direction.

[0014] Optionally, a stop ring is provided at one end of the mandrel near the slider, and the stop ring defines the direction of movement of the sleeve relative to the mandrel as the fourth direction.

[0015] Optionally, an adjusting nut is provided at the end of the mandrel away from the slider. The adjusting nut abuts against the intake valve core, limiting the direction of movement of the intake valve core relative to the mandrel to the third direction.

[0016] Optionally, the valve body has an exhaust port at one end near the exhaust valve core.

[0017] Optionally, both the valve body and the end face of the interface assembly connected to the valve body are provided with threaded holes, and the valve body is connected to the interface assembly by bolts.

[0018] Optionally, the interface assembly has a mounting hole on the opposite end face of the end face connected to the valve body, the mounting hole being used to fix the interface assembly.

[0019] In summary, this utility model provides a height valve, including a valve body, a valve assembly, a drive assembly, and an interface assembly. The valve assembly includes an intake valve and an exhaust valve disposed within the valve cavity of the valve body. The drive assembly drives the intake valve and the exhaust valve to open and close by moving in opposite directions. The interface assembly is detachably connected to the valve body and includes an interface plate. The interface plate has a first air passage and a second air passage designed to be separated from each other, which are respectively connected to an air spring and an air source. The first air passage and the second air passage are used to exhaust and inflate the air spring.

[0020] Compared with the prior art, the technical solution proposed in this utility model has the following beneficial effects:

[0021] The valve body and interface assembly are detachably connected, and only the valve body needs to be disassembled and reassembled during maintenance, which improves the disassembly and assembly speed.

[0022] By connecting the air spring and the air source through the interface component, the height valve can be replaced and disassembled without damaging the original seal, thus avoiding the impact or damage to the interface pipeline caused by disassembling or reassembling the height valve. Attached Figure Description

[0023] Figure 1 A schematic diagram of the height valve provided in an embodiment of this utility model;

[0024] Figure 2 A cross-sectional structural diagram of the height valve provided for an embodiment of this utility model;

[0025] The labels in the accompanying drawings are explained as follows:

[0026] 100-Valve body; 110-Horizontal lever; 120-Valve cavity; 130-Adjusting port; 140-Exhaust port; 150-Filter plate; 160-Threaded hole; 200-Interface plate; 210-Spring port; 220-Inlet port; 230-Mounting hole; 300-Spindle; 310-Sleeve; 320-Retaining ring; 330-Adjusting nut; 340-Slider; 350-Slide groove; 360-Pin; 400-Exhaust valve seat; 410-Inlet valve seat; 420-Exhaust valve core; 430-Inlet valve core; 440-Spring. Detailed Implementation

[0027] The fatigue testing device proposed by this utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments. It should be noted that the drawings are all in a very simplified form and use non-precise scales, used only to facilitate and clarify the explanation of the embodiments of this utility model. Furthermore, the structures shown in the drawings are often part of the actual structure. In particular, different figures may have different emphases and sometimes use different scales. It should be understood that relative terms such as "above," "below," "top," and "bottom" shown in the drawings can be used to describe the relationships between various elements. These relative terms are intended to cover different orientations of elements other than those depicted in the drawings. For example, if the device is inverted relative to the view in the drawings, an element described as "above" another element will now be below that element. It should also be understood that, unless specifically stated or indicated, the terms "first," "second," "third," etc., in the specification are only used to distinguish the various components, elements, steps, etc., in the specification, and are not used to indicate logical or sequential relationships between the various components, elements, steps, etc.

[0028] refer to Figure 1 , Figure 2 As shown, this utility model embodiment provides a height valve, including: a valve body 100, a valve assembly, a drive assembly, and an interface assembly;

[0029] The valve body 100 has a valve cavity 120;

[0030] The valve assembly includes an exhaust valve and an intake valve, which are disposed within the valve chamber 120.

[0031] The drive assembly moves in opposite directions to drive the opening and closing of the intake valve and the exhaust valve, respectively.

[0032] The interface assembly includes an interface board 200, which has a first air passage and a second air passage designed to be separated from each other. The first air passage and the second air passage are respectively used to communicate with the air spring and the air source. The valve body 100 is detachably connected to the interface board 200. After the valve body 100 is installed on the interface board 200, when the drive assembly drives the exhaust valve to open, the gas in the air spring is discharged into the valve chamber 120 through the first air passage and discharged out of the valve chamber 120 through the exhaust valve. When the drive assembly drives the intake valve to open, the gas in the air source passes through the second air passage, the intake valve and the first air passage in sequence and enters the air spring.

[0033] In this embodiment, the valve body 100 and the interface assembly are detachably connected. The air spring and the air source are connected through the interface assembly. In this way, when the height valve is repaired and disassembled, only the valve body 100 needs to be disassembled, which improves the disassembly and assembly speed. Furthermore, the height valve can be replaced and disassembled without damaging the original seal, avoiding the impact or damage to the interface pipeline caused by disassembling and assembling the height valve.

[0034] The structure and working principle of the height valve proposed in this embodiment will be further described below with reference to the accompanying drawings.

[0035] refer to Figure 1 As shown, in this preferred embodiment, the interface plate 200 has two first air passages, each of which has an air spring port 210 communicating with the air spring. The two first air passages communicate with the air spring in opposite directions, that is, the two air spring ports 210 face opposite directions. This design can match the interface orientation of the air springs on the left and right sides of the train. In actual operation, the air spring port 210 that matches the air spring interface orientation is selected for connection. The other air spring port 210 is sealed with a sealing element, realizing bidirectional universal installation of the height valve and improving the versatility of the height valve.

[0036] Continue to refer to Figure 1As shown, as a preferred embodiment, the second air passage on the interface plate 200 is provided with an air inlet port 220 that is connected to the air source. The opening direction of the air spring port 210 of the first air passage is the first direction, and the opening direction of the inlet port of the second air passage is the second direction. The second direction is orthogonal to the first direction. This design improves the practicality and reliability of the height valve by optimizing the space adaptability.

[0037] Further, as a preferred option, refer to Figure 1 As shown, threaded holes 160 are provided on the surface of the valve body 100 and the end face of the interface assembly connected to the valve body 100. The valve body 100 and the interface assembly are detachably connected by long bolts through the threaded holes 160. During the disassembly and assembly process, only the long bolts need to be removed and installed to complete the disassembly and assembly of the valve body 100, which simplifies the steps of disassembly and assembly of the valve body 100 and improves the disassembly and assembly speed.

[0038] refer to Figure 2 As shown, the present invention provides a height valve body 100, a valve assembly, a drive assembly, and an interface assembly. The valve body 100 has a valve cavity 120. Preferably, the valve body 100 has an exhaust port 140 and an adjustment port 130 at both ends. The exhaust port 140 is provided with a filter plate 150 for filtering particulate impurities in the air to prevent clogging of the internal structure of the valve cavity 120. The adjustment port 130 is used for disassembling and adjusting the valve assembly and the drive assembly within the valve cavity 120. The drive assembly includes a horizontal lever 110, a slider 340, a sleeve 310, and a spindle 300, wherein the slider 340, the sleeve 310, and the spindle 300 are disposed within the valve cavity 120. The sleeve 310 is fixedly connected to the slider 340, and the spindle 300 passes through the sleeve 310 and is embedded within the slider 340, and the spindle 300 is movably disposed relative to the sleeve 310. Figure 2 As shown, the adjustment port 130 is oriented in the third direction, and the exhaust port 140 is oriented in the fourth direction.

[0039] A valve assembly is disposed within the valve cavity 120. The valve assembly includes an intake valve and an exhaust valve. The intake valve includes an intake valve core 430 and an intake valve seat 410, and the exhaust valve includes an exhaust valve core 420 and an exhaust valve seat 400. The intake valve seat 410 and the exhaust valve seat 400 are fixedly connected to the inner wall of the valve cavity 120. The intake valve core 430 and the exhaust valve core 420 are sleeved on the spindle 300, and the intake valve core 430 and the exhaust valve core 420 are movably configured relative to the spindle 300. A spring 440 is sleeved between the intake valve core 430 and the exhaust valve core 420. When the slider 340 is in the initial position, the spring 440 has a pre-compression amount. The elastic force generated by the pre-compression amount acts on the intake valve core 430 and the exhaust valve core 420, abutting the intake valve core 430 and the exhaust valve core 420 against the intake valve seat 410 and the exhaust valve seat 400, forming a sealed structure.

[0040] A stop ring 320 is provided at the end of the spindle 300 near the exhaust port 140. The stop ring 320 limits the movement of the sleeve 310 relative to the spindle 300 to the fourth direction. An adjusting nut 330 is provided at the end of the spindle 300 away from the exhaust port 140. The adjusting nut 330 is fixedly connected to the spindle 300 and abuts against the intake valve core 430, limiting the movement of the intake valve core 430 relative to the spindle 300 to the third direction.

[0041] Understandably, both the third and fourth directions are parallel to the axis of the mandrel 300, and as... Figure 2 The orientation of the air intake port 220 of the second air passage shown is the same as the third direction and opposite to the fourth direction. That is, if the air intake port 220 of the second air passage is in accordance with... Figure 1 If the orientation is set as shown, the second direction should be in the same direction as the third direction. In other embodiments, the second direction and the third direction are not in the same direction and intersect each other.

[0042] Further reference Figure 2 As shown, preferably, the principle of air spring deflating and inflation in this embodiment is as follows:

[0043] When the slider 340 moves along a third direction under the drive of the horizontal lever 110, the sleeve 310, which is fixedly connected to the slider 340, moves relative to the spindle 300 along a third direction. At this time, the exhaust valve core 420 moves along a third direction under the action of the sleeve 310, and the exhaust valve core 420 leaves the exhaust valve seat 400. The exhaust valve opens, and the gas in the air spring connected to the air spring port 210 is discharged into the valve chamber 120 through the first air passage and discharged from the valve chamber 120 through the exhaust port 140 through the exhaust valve, thus venting the air spring. When the slider 340 moves along a third direction under the drive of the horizontal lever 110... When moving along the fourth direction, the sleeve 310, which is fixedly connected to the slider 340, abuts against the stop ring 320. The force exerted by the sleeve 310 on the stop ring 320 drives the spindle 300 to move along the fourth direction. The adjusting nut 330 at the other end of the spindle 300 acts on the intake valve core 430, driving the intake valve core 430 to move along the fourth direction and leave the intake valve seat 410. At this time, the gas in the air source connected to the intake port 220 is introduced into the valve chamber 120 through the second air passage, and then passes through the intake valve, the first air passage, and the air spring through the air spring port 210 to inflate the air spring.

[0044] Continue to refer to Figure 2 As shown, as a preferred embodiment, the slider 340 has a groove 350 on its end face near the horizontal lever 110, and a pin 360 is provided inside the groove 350. The horizontal lever 110 is connected to the slider 340 through the pin 360, and when the horizontal lever 110 rotates, it drives the pin 360 to move, thereby causing the slider 340 to move in the valve cavity 120 along the third or fourth direction.

[0045] refer to Figure 1 and Figure 2 As shown, preferably, in this embodiment, the interface component has a mounting hole 230 on the opposite end face of the end face connected to the valve body 100. The mounting hole 230 is used to fix the installation position of the interface component by fasteners. In practical applications, the height valve provided in this embodiment is fixed to a preset position on the train bogie through the mounting hole 230. The horizontal lever 110 is hinged to the train height sensing mechanism (e.g., the connecting rod between the frame and the bogie). According to the valve height valve installation side, the air spring port 210 opened in the first air path in the corresponding direction is connected to the air spring through a pipeline. The other unused air spring port 210 is sealed with a sealing bolt. The air source is connected to the height valve through the air inlet port 220 opened in the second air path. When the load on the installation side of the train height valve increases, the height of the train height sensing mechanism decreases. The horizontal lever 110 hinged to the train height sensing mechanism rotates downward relative to the height valve, driving the slider 340 to move in a third direction. The air inlet valve core 430 Inflate the air spring until it raises the height of the train height valve mounting side to offset the load effect. The train height sensing mechanism returns to its initial height, the horizontal lever 110 and slider 340 return to their initial positions, and the air intake valve core 430 closes. When the load on the train height valve mounting side decreases, the height of the train height sensing mechanism increases. The horizontal lever 110, which is hinged to the train height sensing mechanism, rotates upward relative to the height valve, driving the slider 340 to move in the fourth direction. The exhaust valve core 420 opens to exhaust air from the air spring until it lowers the height of the train height valve mounting side to offset the load effect. The train height sensing mechanism returns to its initial height, the horizontal lever 110 and slider 340 return to their initial positions, and the exhaust valve core 420 closes.

[0046] In summary, this utility model embodiment provides a height valve, including a valve body, a valve assembly, a drive assembly, and an interface assembly. The valve assembly includes an intake valve and an exhaust valve disposed within the valve cavity of the valve body. The drive assembly drives the intake valve and the exhaust valve to open and close by moving in opposite directions. The interface assembly is detachably connected to the valve body and includes an interface plate. The interface plate has a first air passage and a second air passage designed to be separated from each other, which are respectively connected to an air spring and an air source. The height valve provided by this utility model embodiment allows the valve body to be detachably installed on the vehicle via the interface assembly, which can improve the speed of valve body disassembly and assembly during maintenance, simplify maintenance steps, and the air inlet is located in the interface assembly, thus avoiding damage to the interface pipeline caused by the disassembly or assembly of the height valve body, which could compromise the airtightness.

[0047] The above description is only a description of the preferred embodiment of the present utility model and is not intended to limit the scope of the present utility model in any way. Any changes or modifications made by those skilled in the art based on the above disclosure shall fall within the protection scope of the claims.

Claims

1. A height valve, characterized in that, include: Valve body, valve assembly, drive assembly and interface assembly; The valve body has a valve cavity; The valve assembly includes an exhaust valve and an intake valve, wherein the exhaust valve and the intake valve are disposed within the valve cavity; The drive assembly moves in opposite directions to drive the opening and closing of the intake valve and the exhaust valve, respectively. The interface assembly includes an interface board with a first air passage and a second air passage designed to be separated from each other. The first air passage and the second air passage are respectively used to communicate with the air spring and the air source. The valve body is detachably connected to the interface board. After the valve body is installed on the interface board, when the drive assembly drives the exhaust valve to open, the gas in the air spring is discharged into the valve cavity through the first air passage and discharged out of the valve cavity through the exhaust valve. When the drive assembly drives the intake valve to open, the gas in the air source passes through the second air passage, the intake valve and the first air passage in sequence and enters the air spring.

2. The height valve according to claim 1, characterized in that, The interface board has two first air passages, and the two first air passages are connected to the air spring in opposite directions.

3. The height valve according to claim 2, characterized in that, Both of the first air passages have air spring ports for connection with the air springs, and the openings of the two air spring ports face opposite directions.

4. The height valve according to claim 3, characterized in that, The openings of the two air spring ports face a first direction, and the opening of the port of the second air passage used to connect with the air source faces a second direction, which is orthogonal to the first direction.

5. The height valve according to claim 1, characterized in that, The intake valve includes an intake valve core and an intake valve seat, and the exhaust valve includes an exhaust valve core and an exhaust valve seat. The drive assembly controls the opening and closing of the intake valve by driving the intake valve core to move relative to the intake valve seat, and controls the opening and closing of the exhaust valve by driving the exhaust valve core to move relative to the exhaust valve seat. The drive assembly includes a horizontal lever, a slider, a sleeve, and a spindle. The sleeve is fitted onto the spindle and fixedly connected to the slider. The spindle is movably disposed relative to the sleeve. The exhaust valve core and the intake valve core are fitted onto the spindle. When the slider moves along a third direction under the drive of the horizontal lever, the sleeve acts on the exhaust valve core, causing the exhaust valve core to move away from the exhaust valve seat along the third direction. Under the drive of the horizontal lever, the slider moves along a fourth direction, driving the spindle to move, thereby driving the intake valve core to move away from the intake valve seat along the fourth direction. The fourth direction is opposite to the third direction.

6. The height valve according to claim 5, characterized in that, The mandrel is provided with a stop ring at one end near the slider, and the stop ring defines the direction in which the sleeve moves relative to the mandrel as the fourth direction.

7. The height valve according to claim 5, characterized in that, An adjusting nut is provided at the end of the mandrel away from the slider. The adjusting nut abuts against the intake valve core, limiting the direction of movement of the intake valve core relative to the mandrel to the third direction.

8. The height valve according to claim 5, characterized in that, The valve body has an exhaust port at one end near the exhaust valve core.

9. The height valve according to claim 1, characterized in that, The valve body and the end face of the interface assembly connected to the valve body are both provided with threaded holes, and the valve body is connected to the interface assembly by bolts.

10. The height valve according to claim 1, characterized in that, The interface assembly has a mounting hole on the opposite end face to the end face connected to the valve body, and the mounting hole is used to fix the interface assembly.

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